btw, disregard that CALL_ZMQ_FUNC business — that’s just a helper macro that
checks rc etc.
void* temp = zmq_socket(impl->mZmqContext, ZMQ_PUB);
zmq_connect(temp, ZMQ_CONTROL_ENDPOINT);
zmq_pollitem_t pollitems [] = { { temp, 0, ZMQ_POLLIN, 0 } };
zmq_poll(pollitems, 1, 1); // see
https://github.com/zeromq/libzmq/issues/2267
zmq_send(temp, msg, msgSize, 0);
zmq_disconnect(temp, ZMQ_CONTROL_ENDPOINT);
zmq_close(temp);
> On Sep 26, 2017, at 5:22 PM, Bill Torpey <[email protected]> wrote:
>
> Hi All:
>
> I don’t see this addressed specifically in the docs, in the GitHub issues, or
> here, so thought I’d ask.
>
> I bind an inproc sub socket for inter-thread communication, which I include
> in zmq_poll. When I want to e.g., subscribe from a different thread I create
> a pub socket, connect to the first and send it a command message, which then
> gets executed on the main zmq thread. So far, so good.
>
> What I’m wondering if it’s OK to immediately disconnect the socket after
> calling zmq_send, like so:
>
> void* temp = zmq_socket(impl->mZmqContext, ZMQ_PUB);
> zmq_connect(temp, ZMQ_CONTROL_ENDPOINT);
> zmq_pollitem_t pollitems [] = { { temp, 0, ZMQ_POLLIN, 0 } };
> CALL_ZMQ_FUNC(zmq_poll(pollitems, 1, 1)); // see
> https://github.com/zeromq/libzmq/issues/2267
> zmq_send(temp, msg, msgSize, 0);
> zmq_disconnect(temp, ZMQ_CONTROL_ENDPOINT);
> zmq_close(temp);
>
> This *seems* to work, but I’m concerned that maybe I’m just getting "lucky”?
> It does *not* appear to work with ZMQ_PAIR sockets, for whatever reason,
> although I’ve seen that approach recommended in a few places.
>
> Thanks in advance for any assistance!
>
> Regards,
>
> Bill Torpey
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